NCC Electronic Fetal Monitoring

NCC Electronic Fetal Monitoring Certification Exam Questions and Answers (2022/2023) (Verified Answers) How does the fetus compensate for decreased maternal circulating volume? a. Increases cardiac output by increasing stroke volume. b. Increases cardiac output by increasing it's heart rate. c. Increases cardiac output by increasing fetal movement. -correct answer b. Increases cardiac output by increasing it's heart rate. Stimulating the vagus nerve typically produces: a. A decrease in the heart rate b. An increase in the heart rate c. An increase in stroke volume d. No change -correct answer a. A decrease in the heart rate What initially causes a chemoreceptor response? a. Epidurals b. Supine maternal position c. Increased CO2 levels d. Decreased O2 levels e. A & C f. A & B g. C & D -correct answer g. C & D The vagus nerve begins maturation 26 to 28 weeks. Its dominance results in what effect to the FHR baseline? a. Increases baseline b. Decreases baseline -correct answer b. Decreases baseline T/F: Oxygen exchange in the placenta takes place in the intervillous space. -correct answer True T/F: The parasympathetic nervous system is a cardioaccelerator. -correct answer False Which of the following factors can have a negative effect on uterine blood flow? a. Hypertension b. Epidural c. Hemorrhage d. Diabetes e. All of the above -correct answer e. All of the above T/F: Baroreceptors are stretch receptors which respond to increases or decreases in blood pressure. -correct answer True T/F: There are two electronic fetal monitoring methods of obtaining the fetal heart rate: the ultrasound transducer and the fetal spiral electrode. -correct answer True T/F: Variability can be determined with the fetoscope. -correct answer False T/F: Because the ultrasound transducer and toco transducer are sealed units, they can be dipped in warm water to make cleaning easier. -correct answer False T/F: The most common artifact with the ultrasound transducer system for fetal heart rate is increased variability. -correct answer True T/F: All fetal monitors contain a logic system designed to reject artifact. -correct answer True T/F: The monitor should always be tested before starting a tracing, either external or internal mode and labeled a test. -correct answer True T/F: The paper speed on the fetal monitor should always be set at 1cm/min. -correct answer False T/F: Both internal and external monitoring methods are equally accurate means of obtaining the fetal heart rate and contraction patterns. -correct answer False T/F: The external toco is usually placed over the uterine fundus to pick up contractions. -correct answer True T/F: The external toco gives measurable uterine pressure. -correct answer False T/F: The fetal spiral electrode can be placed when vaginal bleeding of unknown origin is present. -correct answer False T/F: The ultrasound transducer is usually placed on the side of the uterus over the baby's back, as the fetal heart is heard best there. -correct answer True T/F: The spiral electrode is used to more accurately determine the frequency, duration, and intensity of uterine contractions. -correct answer False T/F: The heart rate from a well-applied fetal spiral electrode can only be fetal, not maternal. -correct answer False T/F: The intrauterine catheter is used to pick up the fetal heart rate. -correct answer False T/F: The internal spiral electrode may pick up the maternal heart rate if the baby has died. -correct answer True T/F: Fetal arrhythmias can be seen on both internal and external monitor tracings. - correct answer True T/F: Variability and periodic changes can be detected with both internal and external monitoring. -correct answer True T/F: Variable decelerations are a result of cord compression. -correct answer True T/F: The presence of FHR accelerations in the intrapartum and antepartum periods is a sign of adequate fetal oxygenation. -correct answer True T/F: Variable decelerations are a vagal response. -correct answer True T/F: Late decelerations have a gradual decrease in FHR (onset to nadir 30 seconds) and are delayed in timing with the nadir of the deceleration occurring after the peak of the contraction. -correct answer True T/F: The fetal heart rate baseline can be determined during periods of marked variability. -correct answer False T/F: Anything that affects maternal blood flow (cardiac output) can affect the blood flow through the placenta. -correct answer True T/F: Variable decelerations are the most frequently seen fetal heart rate deceleration pattern in labor. -correct answer True T/F: Minimal variability is always an indicator of hypoxia and a Cesarean section is indicated. -correct answer False What is your first intervention in management of a patient experiencing variable decelerations? a. Immediate delivery b. Change maternal position c. No treatment indicated d. Oxygen e. Stop oxytocin infusion -correct answer b. Change maternal position Etiology of a baseline FHR of 165bpm occurring for the last hour can be: 1. Maternal supine hypotension 2. Maternal fever 3. Maternal dehydration 4. Unknown a. 1 and 2